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Sewage treatment plant, Woodridge, New York. NPDES permit NY0023493, in force until Mar 31, 2030. Last 12 months: no values over a limit. Source: EPA ECHO, Oct 22, 2026.
| Parameter | Statistic | Limit | Months |
|---|---|---|---|
| Temperature, water deg. fahrenheit | daily maximum | ≤ 70 deg F | all year |
| Oxygen demand, ultimate | daily maximum | ≤ 136 mg/L | all year |
| Oxygen demand, ultimate | daily maximum | ≤ 900 lb/d | all year |
| Oxygen, dissolved [DO] | minimum | ≥ 4 mg/L | all year |
| pH | minimum | ≥ 6 SU | all year |
| pH | maximum | ≤ 8.5 SU | all year |
| Solids, total suspended | monthly average | ≤ 30 mg/L | all year |
| Solids, total suspended | 7-day average | ≤ 45 mg/L | all year |
| Solids, total suspended | monthly average | ≤ 200 lb/d | all year |
| Solids, total suspended | 7-day average | ≤ 300 lb/d | all year |
| Solids, settleable | daily maximum | ≤ .3 mL/L | all year |
| Nitrogen, Kjeldahl, total [as N] | monthly average | report only (mg/L) | all year |
| Nitrogen, ammonia, total [as NH3] | monthly average | ≤ 9 mg/L | all year |
| Flow, in conduit or thru treatment plant | monthly average | ≤ .79 MGD | all year |
| Chlorine, total residual | daily maximum | ≤ .1 mg/L | May–Oct |
| Coliform, fecal general | 30-day geometric mean | ≤ 200 #/100mL | May–Oct |
| Coliform, fecal general | 7-day geometric mean | ≤ 400 #/100mL | May–Oct |
| BOD, carbonaceous [5 day, 20 C] | monthly average | ≤ 25 mg/L | all year |
| BOD, carbonaceous [5 day, 20 C] | 7-day average | ≤ 40 mg/L | all year |
| BOD, carbonaceous [5 day, 20 C] | monthly average | ≤ 170 lb/d | all year |
| BOD, carbonaceous [5 day, 20 C] | 7-day average | ≤ 260 lb/d | all year |
| BOD, carbonaceous [5 day, 20 C] | monthly average | report only (mg/L) | all year |
| BOD, carbonaceous [5 day, 20 C] | monthly average | report only (lb/d) | all year |
| Solids, suspended percent removal | monthly average minimum | ≥ 85 % | all year |
| Carbonaceous oxygen demand, % removal | monthly average minimum | ≥ 85 % | all year |
Cited limits by parameter: New York's rules and the federal ones.
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On EPA ECHO: Facility report · DMR history
Your permit document is the final word. As JSON: /api/v1/permits/NY0023493 · MCP: https://passage-data.com/mcp